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arXiv · 2603.05090

Double-sphere enhanced optomechanical spectroscopy constrains symmetron dark energy

Jiawei Li·Ka-Di Zhu
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Abstract

Screened scalar fields such as the symmetron provide a viable description of dark energy yet their laboratory detection remains challenging. We propose an optomechanical scheme to constrain symmetron interactions using two optically levitated nanospheres inside a cavity. The symmetron-mediated interaction induces an effective coupling which leads to a measurable splitting in the optomechanical resonance spectrum. We forecast constraints in the regime $\mu \sim 10^{-2}$eV-$10^{-4}$ eV, which shows that this approach can improve existing laboratory bounds by up to several orders of magnitude, demonstrating the sensitivity of optomechanical spectroscopy to screened fifth forces.

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Jiawei Li, Ka-Di Zhu. 2026-03-05. Double-sphere enhanced optomechanical spectroscopy constrains symmetron dark energy. https://arxiv.org/abs/2603.05090

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